Lolth

Spellcasters that sought to devote themselves wholly to the Spider Queen walk the dark path of the arachnomancer. By offering up body and soul to Lolth, they gain tremendous power and a supernatural connection to the ancient spiders of the Demonweb Pits, channeling magic from that dread place.

Expanded Spell List

Lolth lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Great Old One Expanded Spells

Spell Level	Spells
1st	animal friendship, jump
2nd	acid arrow, web
3rd	conjure animals, slow
4th	dominate beast, giant insect
5th	insect plague, cloudkill

Spider's Shape

You can use a bonus action to magically polymorph into a giant spider, remaining in that form for up to 1 hour. You can revert to your true form as a bonus action. Your statistics, other than size, are the same in each form. You can speak and cast spells while in giant spider form. Any equipment being worn or carried in humanoid form melds into the giant spider form. You can’t activate, use, wield, or otherwise benefit from any of equipment. You reverts to humanoid form if you die.

Lolth's Grace

At 6th level, your affiliation with the powers of the Demonweb Pit have transfered to your nonpollymorphed form, allowing you the movement capabilites of a spider. 

Arachnid Fangs

Starting at 10th level, the venomous bite of the spider has added to your combat repertoire. In humanoid form you are capable of making two melee spell attacks, as your fingers morph into fangs, inflicting 8d6 poison damage on a hit.

In giant spider form, the Venom in your spiders bite becomes more potent, allowing you to make a melee spell attack, inflicting (2d8 + Dex) piercing damage, and the target must make a spell save DC Constitution save, inflicting (4d12) poison damage, or half as much on a successful one. If the poison damage reduces the target to 0 hit points, the target is stable but poisoned for 1 hour, even after regaining hit points, and is paralyzed while poisoned in this way.

Demonweb Armor

At 14th level, Lolth infuses your spider form with the dark energies of the Demonweb Pits. While in spider form, your armor class increases by +2, you gain Immunity to poison damage, and resistance to bludgeoning, slashing, and piercing damage.